Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is an infinite bus bar?

34 57085

In a d.c current, the power is the product of voltage and current. This relationship does not always apply to effective(r.m.s) values in an a.c circuit. Explain the reason for this.

2 4007

In a d.c circuit, if current and resistance are known, power (P=I*I*R) can be determined. This relationship also applied to an a.c circuit. Comment the reason for this.

3 2629




Explain why machinery used on a.c supply is usually rated in KVA instead of KW?

EEE, Mtandt,

10 14340

What is meant by power factor correction?

Aspire,

5 8258

when will be the iocl interview results i faced interview on 8th september 2008 iam from electrical branch i faced interview for the post of electrical engineer??????????????????????//

847

what is the earthing condition between earth & phase.

ABB,

3 3406

what is the earthing condition between earth & neutral.

ABB,

6 6771




how percentage impedence effect on the size of the power transformer?

Bhel,

2 4659

I HAVE BEEN SELECTED FOR APGENCO A.E(ELECTRICAL) 2008.HOW MUCH WEIGHTAGE FOR INTERVIEW AND WRITTEN TEST.HOW I HAVE TO PREPARE. PLEASE GIVE INFORMATION IF U KNOW.WHAT ABT G.D THIS TIME.CALL RATIO 1:2

1533

Why electrical engineer use Cu Strip for transformer neutral why not GI Strip? What if we use GI instead of Cu does it affects the transformer performance.

7 10646

WHAT IS MVA RATING OF KOTHAGUDAM THERMAL STATION POWER TRANSFORMER?

Power Grid, CESC,

2 4149

what collector is used for 100kmph-120kmph tracion application?

APTransco,

3 3033

which starter is used for synchronous motor

IBM, APTransco,

18 12655

you have an automatic voltage regulator at home for your appliances,if the voltage in your area drops from 220v to 190v,does the output of the automatic voltage regulator drops?or does it retains the 220v output?

4 3435


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Un-Answered Questions { Electrical Engineering }

what is your majour contributions in your present job

639


What is the numerical quantity of sqcm?

777


1. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.

925


Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

683


Readings of ER300P Trivector meter

4084






Why we specify TNC switch with 1NO 1NC ,2NO 2NC ? how we get connection.?

496


what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group

851


what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?

767


Difference between transition and diffusion capacitance

967


in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?

1012


sir iam from electrical and electronics branch ,can i appear for the hpcl offline requirtment? if yes please mail me on vikram_raju25@yahoo.co.in

796


what will happen if ac and dc supplies given

867


which protection used in power plant?

744


Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.

1052


How Calculet The UPS AH In Load

258